Coating processes – Solid particles or fibers applied – Uniting particles to form continuous coating with...
Patent
1982-05-10
1984-01-31
Beck, Shrive P.
Coating processes
Solid particles or fibers applied
Uniting particles to form continuous coating with...
427425, 411 1, 411301, 411258, 411903, 10 10P, 118308, 118310, 118316, 118322, B05D 102
Patent
active
044289812
ABSTRACT:
The improved method of making externally threaded friction fasteners which comprises directing a stream of particles of thermoplastic friction material onto the threaded surface of the fastener which has been heated to a temperature sufficient to fuse the thermoplastic particles so as to provide a deposit of substantial thickness in the thread grooves of the fastener extending completely around the fastener, in which the fasteners are advanced past a station at which the thermoplastic particles are directed at one or both sides of the threaded portion, and which comprises spinning the fasteners during application of the particles at a rate sufficient to cause the deposit of particles to extend completely around each fastener, and preferably to comprise at least two sequentially applied applications.
REFERENCES:
patent: 3452714 (1969-07-01), Burke et al.
patent: 3579684 (1971-05-01), Duffy
patent: 3677801 (1972-07-01), Hardy
patent: 4223632 (1980-09-01), Cadwallader
patent: 4285378 (1981-08-01), Wallace
Beck Shrive P.
The Oakland Corporation
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